Comment 8 for bug 717489

Run the following:

sudo mv /etc/apt/sources.list.d/google-talkplugin.list /etc/apt/sources.list.d/google-talkplugin.list.temp

That will temporarily stop the google repo from loading. After you have done this run:

sudo apt-get update

Then Remove all the files in /var/log/dist-upgrade. Run the upgrade again. If it fails again, attach the new log files that will be located in /var/log/dist-upgrade.